* wl-vars.el (wl-draft-send-hook): Changed default value to

* wl-vars.el (wl-draft-send-hook): Changed default value to
'(wl-draft-config-exec).

* wl-draft.el (wl-draft-send): Don't call `wl-draft-config-exec'
explicitly.
(wl-draft): Set `wl-draft-config-exec-flag' before running
`wl-mail-setup-hook'.

* wl-xmas.el (toplevel): Add `wl-plugged-init-icons' and
`wl-biff-init-icons' to	`wl-init-hook' instead of
`wl-make-plugged-hook'.
(Because if `wl-draft' command is invoked at first,
they are not initialized)
Updated copyright notice.

* wl-e21.el (toplevel): Ditto;

* wl-demo.el (toplevel): Updated copyright notice.
* wl-address.el (toplevel): Ditto.
* wl-draft.el (toplevel): Ditto.
* wl-version.el (toplevel): Ditto.
* wl-folder.el (toplevel): Ditto.
* wl-summary.el (toplevel): Ditto.
* wl-thread.el (toplevel): Ditto.
* wl-util.el (toplevel): Ditto.
* wl-vars.el (toplevel): Ditto.
* wl.el (toplevel): Ditto.